/*!	 valuenodeconstset.cpp
**	 Template File
**
**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
**
**	This package is free software; you can redistribute it and/or
**	modify it under the terms of the GNU General Public License as
**	published by the Free Software Foundation; either version 2 of
**	the License, or (at your option) any later version.
**
**	This package is distributed in the hope that it will be useful,
**	but WITHOUT ANY WARRANTY; without even the implied warranty of
**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
**	General Public License for more details.
**
*/

#ifdef USING_PCH
#	include "pch.h"
#else
#ifdef HAVE_CONFIG_H
#	include <config.h>
#endif

#include <synfig/general.h>

#include "valuenodeconstset.h"
#include <synfigapp/canvasinterface.h>

#include <synfigapp/localization.h>

#endif

using namespace std;
using namespace etl;
using namespace synfig;
using namespace synfigapp;
using namespace Action;

ACTION_INIT(Action::ValueNodeConstSet);
ACTION_SET_NAME(Action::ValueNodeConstSet, "ValueNodeConstSet");
ACTION_SET_LOCAL_NAME(Action::ValueNodeConstSet, N_("Set ValueNode_Const"));
ACTION_SET_TASK(Action::ValueNodeConstSet, "set");
ACTION_SET_CATEGORY(Action::ValueNodeConstSet, Action::CATEGORY_VALUENODE);
ACTION_SET_PRIORITY(Action::ValueNodeConstSet, 0);
ACTION_SET_VERSION(Action::ValueNodeConstSet, "0.0");
ACTION_SET_CVS_ID(Action::ValueNodeConstSet, "$Id$");

Action::ValueNodeConstSet::ValueNodeConstSet()
{
    set_dirty(true);
}

Action::ParamVocab
Action::ValueNodeConstSet::get_param_vocab()
{
    ParamVocab ret(Action::CanvasSpecific::get_param_vocab());

    ret.push_back(ParamDesc("value_node", Param::TYPE_VALUENODE)
                  .set_local_name(_("ValueNode_Const"))
                 );

    ret.push_back(ParamDesc("new_value", Param::TYPE_VALUE)
                  .set_local_name(_("ValueBase"))
                 );

    return ret;
}

bool
Action::ValueNodeConstSet::is_candidate(const ParamList &x)
{
    if (candidate_check(get_param_vocab(), x)) {
        if (ValueNode_Const::Handle::cast_dynamic(x.find("value_node")->second.get_value_node())) {
            return true;
        }
    }

    return false;
}

bool
Action::ValueNodeConstSet::set_param(const synfig::String& name, const Action::Param &param)
{
    if (name == "value_node" && param.get_type() == Param::TYPE_VALUENODE) {
        value_node = ValueNode_Const::Handle::cast_dynamic(param.get_value_node());

        return (bool)value_node;
    }

    if (name == "new_value" && param.get_type() == Param::TYPE_VALUE) {
        new_value = param.get_value();

        return true;
    }

    return Action::CanvasSpecific::set_param(name, param);
}

bool
Action::ValueNodeConstSet::is_ready()const
{
    if (!value_node || !new_value.is_valid()) {
        return false;
    }

    return Action::CanvasSpecific::is_ready();
}

void
Action::ValueNodeConstSet::perform()
{

    old_value = value_node->get_value();

    // We shouldn't change the parameters properties when change its value
    new_value.copy_properties_of(old_value);

    value_node->set_value(new_value);

    // Signal that a layer has been inserted

}

void
Action::ValueNodeConstSet::undo()
{

    value_node->set_value(old_value);

    // Signal that a layer has been inserted

}